| 摘要: |
| 航道维护底宽是内河航道养护管理工作的重要指标之一。为探究限制性航道维护底宽的确定方法，基于航海学和可靠性理论，分析计算了满足通航标准、船舶运动特性、航行可靠性的航道底宽，构建了内河限制性航道维护底宽的效益 费用模型。其中效益模型由船舶运输、节能减排、替代公路运输以及防洪等效益构成，费用模型由一次性疏浚及日常维护等费用构成。在此基础上，耦合多因素综合分析计算了京杭运河镇江段的航道维护底宽，结果表明该航段40 m维护底宽较为合理。该限制性航道维护底宽确定方法较好地考虑了内河限制性航道多因素多目标需求，具有较高实用价值。 |
| 关键词: 效益费用模型 航行可靠性 限制性航道 维护 底宽 |
| DOI： |
| 分类号:U611 |
| 基金项目:国家自然科学基金资助项目（51479035） |
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| A method for determining maintenance bottom width of a restricted channel using coupled multi-factors |
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XIA Feng, CHEN Yimei, WANG Zongchuan, MAO Lilei
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School of Transportation, Southeast University, Nanjing
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| Abstract: |
| The maintenance of the channel bottom width is one of the important indicators for maintenance and management of the inland waterway. Reasonable maintenance of the width of the waterway is an important guarantee for the scientific management of the waterway and the green development. In order to explore the method of determining the bottom width of the restricted channel maintenance, and to guide the channel maintenance and management, and based on the theory of navigation and reliability, and the width of the channel bottom which should meet the requirements of the Inland River Navigation Standard, the characteristics of the ship motion and the reliability of the navigation are analyzed and calculated. A cost-benefit model for the inland river restrictive channel maintenance is also developed. The benefits in the model include ship transportation, energy saving, emissions reduction, alternative highway transportation and flood control. The costs in the model include one-time dredging and daily maintenance expenditures. Based on this model, a comprehensive coupled multi-factors analysis was carried out to assess the channel maintenance width for the Zhenjiang reach of the Beijing-Hangzhou Canal. The analysis results show that the 40 m width of the waterway is reasonable. The method of determining the bottom width of the restricted channel has taken into account the multi-factors and multi-targets demand of the inland river restricted channel and has a high practical value. |
| Key words: Benefit-cost model navigation reliability restrictive channel maintenance channel bottom width |
